CS227498B1 - Method of finishing textile materials - Google Patents

Description

The invention relates to antistatic, softening, hydrophilic and anti-pilling finishes of polyester fiber-containing textile materials using compounds of formula k + (1) wherein k is 1 or 2 n is 1, 2 or 3

X is an anion of a strong organic or inorganic acid Y is CHg - CH - CH ₂ CH, - CH - CH, Γ I Cl OH bonded to the nitrogen atoms of the cyclic group MM is a five or six membered two nitrogen cycle derived from pyridazine, pyrimidine , pyrazine, piperazine, pyrazole, pyrazoline, pyrazolidine or imidazole, wherein the individual hydrogen atoms may be replaced by alkyls or hydroxyalkyls having a carbon number of 1 to 4.

The compounds of the general formula (1) have been developed as auxiliary agents for dyeing cellulosic fibers, since they are capable of mediating the attachment of anionic dyes to these fibers.

Because the formulations have two groups capable of reacting with hydroxyl groups, they also cause cellulose build-up and hence improve recovery angles, especially when wet.

From the point of view of the dyeing process, the use of these substances increases the dye utilization, improves the color fastness and simplifies the dyeing process.

It has recently been shown that the compounds of formula (1) can also be used in the technology of finishing polyester fibers and mixtures thereof with cellulose or other synthetic fibers.

One of the main purposes of finishing polyester fibers is to suppress static charge when worn, to improve the moisture transport of textiles, to improve drapability and softness. The result of these modifications is to improve the utility properties, which makes the wearing of polyester fiber fabrics more pleasant.

Typically, a softening and antistatic treatment of PES fiber fabrics is performed by applying suitable formulations which, however, only adhere to the fiber surface, and thus the treatment is not wash-stable.

The beneficial effects of low temperature plasma on the surface properties of polyester fibers have recently been found. However, this procedure is conditional on the development of relatively complex machinery.

According to the invention, a permanent surface modification of the PES fibers by the action of the compounds of formula (1) can be achieved by applying them to fabrics containing polyester fibers in the presence of an alkali or an alkali-releasing substance.

The polyester fiber-containing fabrics may be processed in aqueous solutions containing 1 to 150 g / ^{l of the} compounds of formula (1) at temperatures of 20 to 140 ° C in the presence of alkali, preferably sodium hydroxide at a bath pH of 11 to 14 ° C.

However, processes in which the fabric is impregnated with a water bath containing the compounds of formula (1) and an alkali are more efficient. Modification of the surface of the PES fibers is achieved by mere cold deposition for 2 to 24 hours or by elevated temperature deposition. At 60 ° C a reaction time of 60 minutes is sufficient. The fabrics can be dried after impregnation and heat treated at a temperature of 100 to 220 ° C for a short time.

Textile materials containing PES fibers, after treatment with alkaline baths containing the compounds of formula (1), are characterized by a soft flowing feel, very good moisture transport, antistatic properties and resistance to pilling. All these properties are permanent.

The advantages of the invention are illustrated in the following examples:

He did

The dyed polyester silk fabric is prepared on a filament bath with 30 g ^-1 1,3-di (3-chloro-2-hydroxypropyl) imidazolinium chloride 15 g.l ' sodium hydroxide.

After passing through the follicle (50% defat), the fabric was not wrapped and allowed to rest for 12 hours in a polyethylene film-protected wrap, followed by washing on a broad-scrubbing machine to remove residual alkali. The surface resistance is 400 times lower than the original fabric.

A similar effect is obtained by using the same amount of any of the compounds:

1,2-di- (3-chloro-2-hydroxypropyl) pyridezinium sulfate

1,2-di- (2,3-epoxypropyl) pyridazinium chloride

1-epoxypropyl-2-hydroxypropylpyridazinium acetate

1,3-di- (3-chloro-2-hydroxypropyl) pyrimidinium sulfate

1,3-di- (2,3-epoxypropyl) pyrimidinium chloride

1,4-di- (3-chloro-2-hydroxypropyl) pyrazinium chloride

1,4-di- (2,3-epoxypropyl) pyrazinium sulfate

1,4-dimethyl-1,4-di- (3-chloro-2-hydroxypropyl) piperazinium sulphate

1,2-di (3-chloro-2-hydroxypropyl) pyrazolinium chloride

1,2-di- (2,3-epoxypropyl) pyrazolinium sulfate

1,3-di- (3-chloro-2-hydroxypropyl) imidazolinium acetate

1,3-di- (2,3-epoxypropyl) imidazolinium sulfate

1,3-dimethyl-1,3-di- (3-chloro-2-hydroxypropyl) imidazolinium acetate.

Example 2

The double-faced knitted fabric of polyester silk and cotton, after printing the polyester side with a transfer printing technique, is lined on a bath fullet containing 40 gl ^{-1 of} 1,3-diglycidylimidazolinium acetate

gl ^-1 sodium hydroxide.

After passing through the follicle (55% rinser), the fabric is allowed to rest in a thermal chamber at 60 ° C for 60 minutes. After washing and drying, the knitted fabric exhibits very good absorbency of both components of the mixture, softness and drape and very good antistatic properties. The cellulosic component provides improved wet recovery.

Example 3

The shirts of 67% PES staple and 33% cotton are dyed after dyeing on the bath flange of Example 1 (70% rinse). This is followed by drying at 100 ° C and hot air fixation at 150 ° C for 1 minute.

After washing, the fabric exhibits the properties given in Example 1.

He attaches

Knit of polyester silk and cotton (80/20%) is dyed with a dispersion and substantive dye on a VT hydrodynamic dyeing machine using conventional technology. After thorough washing, the fabric is treated at a bath ratio of 1: 10 with a water bath containing

g.l ^-1 1,3-di- (3-chloro-2-hydroxypropyl) pyrimidiniumsulfát 4 gl ^-1 sodium hydroxide.

In this bath, the knitted fabric is treated at 60 ° C for 40 minutes. This is followed by washing or soaping with an anionic detergent. The knitwear shows excellent hydrophilicity, softness and suppression of the tendency to pilling. At the same time antistatic effect and stabilization of substantive dyeing on cotton part is achieved.

Claims (1)

SUBJECT OF THE INVENTION A method of finishing textile materials comprising polyester fibers, characterized in that the textile materials are treated with a water bath containing 1 to 150 g ^{-1 of a} compound of the formula k + k _in n ~ n (1) where k is a number 1 or 2 n is a number 1, 2 or 3 X is an anion of a strong organic or inorganic acid Y is CHg-CH-CHg-CH-CH-CH II Cl OH bonded to the nitrogen atoms of the cyclic group MM is a five or six membered two-nitrogen cycle derived from pyridazine, pyrimidine, pyrazine, piperazine, pyrazole, pyrazoline, pyrazolidine or imidazole, wherein the individual hydrogen atoms can be replaced by alkyls or hydroxyalkyls of 1 to 4 in the presence of an alkali, preferably sodium hydroxide, at a bath pH of 11 to 14; Severography, n. P., MOST Price 2,40 Kčs